Divide the chopped mint between the cavities of a small silicone mold (see main post for details).

Add the sugar free lime jello powder to a saucepan, together with one envelope of unflavored powdered gelatin, and the water. Place over a low-medium heat and cook until all the granules have dissolved. Stir in the rum.

Use a squeeze bottle or dropper to transfer the mixture to the mold. Note: If you have any froth on the jello mixture, try to avoid adding that to the mold, as the final gummies may not be clear.

Let it cool, then place it in the fridge until set - about 30 minutes.

Carefully remove the mojito jello bites from the mold. Store in the fridge until required - and they're best eaten within three days.